Manufacturer of micro-measuring software, tool microscopes, optical projectors, micro-image systems, biological microscopes, stereo microscopes, metallurgical microscopes, video microscopes, measuring microscopes, polarize microscopes, melting-point measuring apparatus, interference microscopes, vertical spectrophotometer, lens centering device, center deflection measuring instruments, Abbe refractometer, micro-sclerometer and goniometer, etc. 
China